BEVERLY HILLS, Calif. — Michael McKean is joining series star Bob Odenkirk in AMC’s Better Call Saul, the much-awaited prequel to Breaking Bad, with Jonathan Banks, another star from that wildly popular drama, also set for the new venture.

Best-known from the film This Is Spinal Tap, McKean will play the brother of Saul Goodman, the character originated in Breaking Bad by Odenkirk. Banks will continue in his role as “fixer” Mike Erhmantraut.